.num1{
  width: 30px;
  height: 30px;
  background-color: aqua;
  color: #fff;
  border-radius: 50%;
  display: block;
  text-align: center;
  line-height: 30px;
  margin: 0 auto;
  margin-top: 10px;
  font-size: 20px;
}
.num2{
  width: 30px;
  height: 30px;
  background-color: chartreuse;
  color: #fff;
  border-radius: 50%;
  display: block;
  text-align: center;
  line-height: 30px;
  margin: 0 auto;
  margin-top: 10px;
}
.num3{
  width: 30px;
  height: 30px;
  background-color: deeppink;
  color: #fff;
  border-radius: 50%;
  display: block;
  text-align: center;
  line-height: 30px;
  margin: 0 auto;
  margin-top: 10px;
}